Entanglement generation via phase-matched processes: different Bell states within the linewidth
量子物理
2007-10-01 v1
摘要
It is shown, theoretically and experimentally, that at any type-II spontaneous parametric down-conversion (SPDC) phase matching, the decoherence-free singlet Bell state is always present within the natural bandwidth and can be filtered out by a proper spectral selection. Instead of the frequency selection, one can perform time selection of the two-photon time amplitude at the output of a dispersive fibre. Applications to quantum communication are outlined.
关键词
引用
@article{arxiv.quant-ph/0702090,
title = {Entanglement generation via phase-matched processes: different Bell states within the linewidth},
author = {G. Brida and M. V. Chekhova and M. Genovese and L. A. Krivitsky},
journal= {arXiv preprint arXiv:quant-ph/0702090},
year = {2007}
}
备注
submitted for publication